ho scale sand and gravel

My favorite material for dirt and gravel roads is very fine sand. ... to 3/4 inch crushed stone, which is roughly 0.008 inches in HO. ... Ballast is somewhat coarser, at 2-4", although medium ballast is more like 6-8 scale inches.

My favorite material for dirt and gravel roads is very fine sand. ... to 3/4 inch crushed stone, which is roughly 0.008 inches in HO. ... Ballast is somewhat coarser, at 2-4", although medium ballast is more like 6-8 scale inches.